Improvement in brick-machines



UNITED STATES PATENT OFFICE.,

JOHN WATSON, OF BUFFALO, NEW YORK, ASSIGNOB TO ORAN W. SEELY,

' OF SAME PLACE.

IMPROVEMENT IN BRICK-MACHINES.

To all whom it may concern.-

Be it known that l, JOHN WATSON, of the city of Buffalo, county of Erie,and State of New York, have invented a new and Improved Connecting Rodor Bar for Brick-Machines, and I do hereby declare that the following isa full and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

Figure l represents a geometrical perspective view of my improvedconnectin g-rod, showing a part of the side of a brick-machine. Fig. 2is a side elevation, showing the cam by which the connecting-rodreceives its motion.

The nature of my invention consists in providin g a connecting-rod fordraWin g the mold of a brick-machine, the said rod having a slot ofsucient length as to allow the mold to move by a reciprocating motionthe distance required. The said slotted connecting-rod is iitted uponthe end of the main shaft of the machine so as to work freely on thesame, and which serves as a guide for that end of the connecting rod orbar opposite from the end that is attached to the mold.

It further consists in constructing a cam, in combination with theslotted rod, in such a manner that while the clay is being pressed themold remains stationary, 0r nearly so, over the brick. The cam is soconstructed as to give a backward motion to the mold while the press isbeing drawn together. The obj ect and advantages of this backward motionare that when a uniform reciprocative motion is employed in drawing themold the clay is drawn forward and scraped oi', thus leaving a place inthe back side of the mold that is not illed with clay, so that the brickpressed in this manner leaves an imperfect corner upon the back side ofthe brick.

Another great advantagein my invention is that from the peculiar motionof the cam it allows the mold to remain stationary, or nearly so, whilethe clay is deposited in the press and While the pistons have receded tothe greatest distance from each other.

It has for a long time been the great desideratum of inventors and thoseengaged in manufacturing brick to obtain some means to produce theproper reciprocating motion to the mold, so that it might remainstationary and directly between the two pistons when they Specificationforming part of Letters Patent No. 55,432, dated June 5, 1866.

had receded to the greatest distance from each other for thev purpose ofreceiving the clay, and to be in the same position at the nearestapproach to each other and while the clay is receiving the action of thepistons, and also to move or change its position at the proper time,that the brick may be ejected from the machine.

It will be observed that the troubles and difficulties heretoforeencountered by the uniform reciprocating motion are obviated andovercome by my invention.

To enable others skilled in the art to make and use my invention, I willproceed to dc-` scribe its construction and operation.

Letters of like naine and kind refer to like parts in each of theiigures.

B represents the side of a brick-machine to which my improved connectingrod is attached.

A is the sliding top of the mold, which has an irregular reciprocatingmotion from the connecting-rod O. Ihe said connecting-rod O may be madeof wood, iron, or any other suitable material, and is provided with aslot, D, into which passes the end of the shaft F, which is the maindriving-shaft of the machine, but is no part of this invention,therefore is not shown. The end of the said shaft serves as a guide tothat end of the said connecting-rod (l.V A lug or pin may also besubstituted in the side of the frame B, in place of the end of theshaft, to serve as a guide.

G is the cap of the journal-box of the main shaft F.

E is the connectingjoint of the connectingrod to the sliding mold A.

I-I is the cam-wheel, or the wheel in which the cam-groove I is made,the said wheel being rigidly secured upon the shaft F.

O is a pin or lug` rmly secured to the connecting-rod O. The said pin orlug works snugly and freely in the cam-groove I, which, as the camrevolves, gives a suitable and proper motion to the sliding mold A.

It may here be observed that the connectingrod may also be worked byteeth or cogs upon the inside of the slot in the connecting-rod meshinginto corresponding cogs or teeth upon the end ofthe shaft, but which arenot shown in the drawings.

It will be understood that the slot D in the connecting-rod C is ofsufficient length to allow the required reciprocating` motion of thecon- The combination 0f the slotted rod D with necting-rod for drawingthe mold of a brickthe cam I, when used to give an irregular reinachiueeither by :L cam or other equivalent; ciprocatingr mot-ion to the moldsof a bricknieans. machine, for the purposes and substantially I do notclaim, broadly, a slotted connecting as herein described.

rod or arm, as it is used in a variety of ma.- JOHN WATSON.

chines; but Witnesses:

What I do claim, and desire to secure by ALBERT FRANK, Letters Patent,isi OYRUS ROGERS.

